Whether your goal is looks, efficiency, or merely getting your engine running, pulleys are critical parts, and there are important factors that need to be considered when selecting them. If you're ...

Round belt pulleys are mechanical devices which transmit rotational motion around an axle. They are used to lift loads or to apply/transmit power. The round belt pulley accommodates a belt, cable, or ...

If you've ever popped the hood of a running car, you probably noticed all the activity going on. Up top, you may hear the rhythmic ticking of the fuel injectors, then, if the engine was just fired up ...

Idler pulleys are used to take up slack, change the direction of transmission, or provide clutching action. Idler pulleys are rollers that do not produce any mechanical advantage, nor transmit power ...

We all know that success in racing requires paying attention to the details. Too often, it's the little things that throw a monkey wrench into what would have otherwise been a successful night of ...

One common misconception is that belts will slip more frequently on composite pulleys than on metal pulleys. Not so! The wedging action of V-belts is so efficient that slip should never be an issue; ...

Pro road racers who use Berner's uniquely oversized rear derailleur cages have sworn time and again that they reduce drivetrain friction thanks to their humongous 15-tooth pulleys. Now, Jason Smith of ...

Have you ever seen a flag being raised, or wondered how a mechanical clock works? Let’s take a look at some of the simple mechanisms that they use. Pulleys and gears. When a flag is raised, it will ...